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R = 7cm h= 24cm volume of the cone = 1/3 πr2 h = 1/3 π ×49×24 = 392 π cm3
The average age of 33 children and their teacher's age are 25 years. If the teacher's age is excluded, the average reduces by 1. What is the teacher's age?
In an examination the average marks of Rohit is 54. If he got 18 more marks in science and 22 more marks in maths then his average would have been 58. F...
A bowler gives 15 runs per wicket. He gives 30 runs and takes 5 wickets in a last match after which his average becomes 13.5 runs per wicket. How many w...
15 years ago, the average age of all the 80 teachers of the college was 50 years. 8 years ago, the principal has retired from her post at the age of 60 ...
The average monthly salary of 12 employees is ₹45,000. If the salary of one employee is excluded, the average decreases by ₹1,500. What is the salar...
Average age of company A is 24 years and average age of both companies A and B is 12 years. If the ratio of number of employees in company A and B is 3:...
In a school with 400 students, the average of the age of the boys is 16 years and that of the girls is 12 years. If the average age of the school is 14 ...
There are 15 numbers such that average of first 12 numbers is 45 while the average of last five numbers is 56. Find the 12th number, if the ratio betwee...
A student has two types of markers: Marker A priced at $3 each and Marker B priced at $5 each. If the student purchases a total of 12 markers, with an a...
There are only 220 students living in hostel. If 20 students left hostel, then overall expenditure of mess is reduced by Rs. 800 weekly but per student ...
